Psalm 23 is perhaps the most well-known and beloved passage in all of Scripture. Even people who don't know the Bible know Psalm 23. "The LORD is my shepherd; I shall not want." Let me tell you something — that first statement is one of the most profound confessions of faith that a human being can make.
To say "the LORD is my shepherd" is to say, I am the sheep. And sheep, as you may know, are not the most independent creatures. They need a shepherd. They wander. They get lost. They're vulnerable. And David, who was himself a shepherd boy before he was a king, knew this better than anyone.
"He makes me lie down in green pastures." Notice — He makes me. Sheep don't lie down unless they feel safe. A sheep will not rest if it is frightened, if there is friction in the flock, if it is hungry, or if it is tormented by pests. When a sheep lies down in green pastures, it's a picture of complete contentment and security.
"He leads me beside still waters." Sheep are afraid of rushing water. They will not drink from a rushing stream. A good shepherd will find still waters, calm waters, where his sheep can safely drink. God doesn't force you into water that will overwhelm you. He leads you to places of peace.
"Even though I walk through the valley of the shadow of death, I will fear no evil, for you are with me." This is the pivot point of the psalm. David shifts from talking about God in the third person — He leads, He makes, He restores — to talking directly to God: "you are with me." In the darkest valley, the relationship becomes deeply personal.
The rod and staff comfort us. The rod was a club used to fight off predators. The staff was used to guide and rescue sheep. Together they represent both God's protection and His gentle correction. Both comfort us.